Home / 65,408.16-90,262.11-36,728.05

Finding the Fourth Proportional to 65,408.16, 90,262.11 and 36,728.05

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Solution

The fourth proportional to 65,408.16, 90,262.11 and 36,728.05 is: 50,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,408.16 : 90,262.11 = 36,728.05 : x
  2. Step 2: Convert to fraction form
    65,408.16/90,262.11 = 36,728.05/x
  3. Step 3: Cross multiply
    65,408.16x = 90,262.11 × 36,728.05
  4. Step 4: Simplify right side
    65,408.16x = 3,315,151,289.19
  5. Step 5: Solve for x
    x = 3,315,151,289.19/65,408.16
  6. Step 6: Final answer
    x = 50,684.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.